least games played by a retired player averaging at least 20 ppg in their career

Alex Groza had the fewest games by an inactive or retired player with 20.0+ points per game, with 130 games.

Interpreted as:

least regular-season games played by a retired player averaging at least 20 ppg in their career

	NAME	GP	PPG	MPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	Alex Groza A. Groza	130	22.5						7.8						6.9								2,924
2	John Williamson J. Williamson	288	20.1						8.2			0.2			3.8	4.5	83.3						5,802
3	George Mikan G. Mikan	439	23.1						8.1						7.0	8.9	78.1						10,157
4	Geoff Petrie G. Petrie	446	21.8	37.6	2.8	4.6	1.1	0.1	8.9	19.5	45.5				4.0	5.0	80.5	50.2	0.6	2.0		16,776	9,732	1,271	2,057	247	33		1,076
5	David Thompson D. Thompson	509	22.1	32.0	3.8	3.2			8.3	16.4	50.4	0.1			5.5	7.1	77.8	56.6				16,308	11,266	1,921	1,631				1,287
6	Gilbert Arenas G. Arenas	552	20.7	35.1	3.9	5.3	1.6	0.2	6.7	16.0	42.1	2.0	5.6	35.1	5.2	6.5	80.3	54.7	0.8	3.1	3.2	19,350	11,402	2,168	2,909	884	134	1,744	1,683	+24
7	Billy Cunningham B. Cunningham	654	20.8						7.8						5.2	7.2	72.0						13,629
8	Pete Maravich P. Maravich	658	24.2						9.4			0.2	0.3	66.7	5.4	6.6	82.1						15,946
9	Glenn Robinson G. Robinson	688	20.7	36.8	6.1	2.7	1.2	0.6	8.1	17.6	45.9	0.9	2.6	34.0	3.6	4.4	82.0	52.9	1.5	4.6	3.1	25,346	14,234	4,189	1,879	826	389	2,147	1,847	+10
10	Marques Johnson M. Johnson	691	20.1	34.3	7.0	3.6			8.3	16.0	51.8	0.0			3.5	4.7	74.0	55.6				23,695	13,892	4,819	2,503				1,765
11	Paul Arizin P. Arizin	713	22.8						7.9						7.0	8.7	80.9						16,258
12	Dan Issel D. Issel	718	20.4	31.1	7.9	2.5			7.6	14.9	50.6	0.0			5.3	6.6	79.7	57.2				22,342	14,659	5,707	1,805				2,022
13	John Drew J. Drew	739	20.7						7.4			0.0			5.8	7.8	74.9						15,291
14	George Gervin G. Gervin	791	26.2	33.6	4.6	2.8	1.2	0.8	10.2	19.9	51.1	0.1	0.5	29.8	5.7	6.8	84.4	57.2				26,556	20,708	3,606	2,211	937	660		2,332
15	Bob Pettit B. Pettit	792	26.4						9.3						7.8	10.2	76.2						20,880
16	Rick Barry R. Barry	794	23.2	36.3	6.5	5.1			9.1	20.4	44.9	1.0			4.8	5.3	90.0	51.0				28,825	18,395	5,168	4,017				2,263
17	Chris Webber C. Webber	831	20.7	37.1	9.8	4.2	1.4	1.4	8.7	18.1	47.9	0.3	1.1	29.9	3.0	4.7	64.9	51.3	2.7	7.0	2.8	30,846	17,182	8,124	3,526	1,197	1,200	2,313	2,700	+1550
18	Julius Erving J. Erving	836	22.0						8.7			0.1			4.6	5.9	77.6						18,364
19	Elgin Baylor E. Baylor	846	27.3						10.3						6.8	8.7	78.1						23,136
20	Bob McAdoo B. McAdoo	852	22.0						8.7			0.0			4.6	6.1	75.4						18,785
21	Bernard King B. King	874	22.5						9.0			0.0			4.5	6.2	73.0						19,655
22	World B. Free W. B. Free	886	20.3						7.3			0.4			5.3	7.1	75.3						17,953
23	Lou Hudson L. Hudson	889	20.2						8.3						3.5	4.4	79.8						17,939
24	Larry Bird L. Bird	897	24.3	38.4	10.0	6.3			9.6	19.3	49.6	0.7			4.4	5.0	88.5	56.4				34,439	21,791	8,974	5,695				2,279
25	Dave Bing D. Bing	901	20.3						7.7						4.9	6.3	77.5						18,329